MSM7532 Ver la hoja de datos (PDF) - Oki Electric Industry

Número de pieza

componentes Descripción

Fabricante

MSM7532

Single Chip MSK Modem with Compandor for Cordless Telephone

Oki Electric Industry 

¡ Semiconductor

MSM7532

Voice Signal Processing Characteristics

(VDD = 2.1 V to 5.5 V, Ta = –30 to 70°C)

Parameter

Symbol

Condition

Min Typ Max Unit

Limiter Clamp Level

VLIM

R3 = R4, VDD = 2.4 V

–16 –15 –14 dBV

Transmit Output Distortion

Receive Output Distortion

HDT

HDR

fIN = 1 kHz, –18 dBV

BYP = EMP = "0", R7 = R8

— –48 –40

dB

— –45 –38

Transmit Idle Noise

NIT

Receive Idle Noise

NIR

(Receive to transmit)

Crosstalk

CTT

(Transmit to receive)

CTR

BYP = EMP = "0"

R7 = R8

BYP = EMP = "0"

fIN = 1 kHz, –15 dBV

— –62 –52

— –80 —

dBV

— –60 –50

— –90 —

Transmit Gain

Receive Gain

GT1

SEC = "0" –1.5 0 +1

GT2

GR1

fIN = 1 kHz

BYP = "1"

SEC = "1" –1.5 0

SEC = "0" –1.5 0

+1

dB

+1

GR2

SEC = "1" –1.5 0 +1

Reverse Frequency

of Voice Scrambler

3200 Hz 3197 3200 3203

fR

Common to transmit

and receive

3291 Hz 3288 3291 3294

Hz

3388 Hz 3385 3388 3391

Transmit Reverse

Frequency

Leak Level

Receive Reverse

Frequency

Leak Level

LRT

No signal input

— –88 –60

BYP = RCK2 = "0"

dBV

SEC = RCK1 = "1"

LRR

R7 = R8

— –110 —

Transmit Input Signal

Leak Level

Receive Input Signal

Leak Level

Transmit Filter

Receive Filter

LIT

LIR

FT1

FT3

FT25

FT30

FT50

FR1

FR3

FR25

FR30

FR50

fIN = 1 kHz, –15 dBV

BYP = RCK2 = "0"

SEC = RCK1 = "1", R7 = R8

— –55 –48

— –55 –48

EMP = "1"

BYP = "1"

SEC = "0"

RCK1 = "0"

RCK2 = "0"

Reference = 1 kHz

100 Hz — –28 –23

300 Hz –12.5 –10.5 –8.5

2.5 kHz +6.5 +8.0 +9.5

dB

3 kHz +7 +9 +11

5 kHz — –32 –27

100 Hz +1.0 +2.5 +4.0

300 Hz +7.5 +9.0 +10.5

2.5 kHz –9.5 –8.0 –6.5

3 kHz –11.5 –9.5 –7.5

5 kHz — –35 –30

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